Combined plow and subsoiler.



J. R. HARRISON & G. W. HOOPER. v

GOMBINBD PLOW AND SUBSOILBR. APPLIUATION IILED MAY 21, 1912.

1,074,620, Patented 0013.7,1913.

I Attorneys I Witnesses UNITED srnrns rarnnr carton JOSEPH RICHARDSON HARRISON AND GEORGE VIILLIAM HOOPER, F NASHVILLE, ARKANSAS.

COMBINED PLOW AND UBSOILER.

Lorenzo.

Specification of Letters Patent.

Patented Oct. 7, 1913.

Application filed May 21, 1912. Serial No. 698,805.

To all whom it may concern:

Be it known that we, JOSEPH RICHARDSON HARRISON and GEORGE WILLIAM Hoornn, Citizens of the United States, residing at Nashville, in the county of Howard, State of Arkansas, have invented a new and useful Combined Plow and Subso-iler, of whichthe following is a specification.

This invention relates to a combined plow and,sub-soiler, its object being to provide, in a single structure, means whereby a furrow may be formed and the sub-soil loosened, the sub-soiling portion being adjustable so as to'operate at different depths.

A further object is to provide a device of this character which is simple and durable in construction and which can be operated in the same manner as an ordinary plow.

With the foregoing and other objects in View which will appear asthe description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the-precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit ofthe invention;

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings :Figure 1 is a side elevation of the device. Fig. 2 is a plan view thereof. Fig. 3 is a perspective view of the stock of the sub-soiler. Fig. 4 is a vertical longitudinal section through the plow. Fig. 5 is a rear elevation of the moldboard and adjacent parts.

Referring to the figures by characters of reference 1 designates a plow beam formed preferably of metal and terminating, at its rear end, in a downwardly curved stock 2 the terminal of which is extended rearwardly to form a shoe 3 to which is bolted or otherwise fastened the landside 4 of a furrow opener 5. A metal strap 6 is bolted or otherwise fastened to the back face of the moldboard 7 and also to one side of the stock 2 and this strap is secured to one of the handles 8 of the plow. The other handle 9 of the plow is connected to the back of the moldboard 7 by means of a strap 10. The two handles 8 and 9 are connected by a cross strip 11, and'braces'12 connect the handles to the beam 1 at an intermediate point.

Secured to the sides of the beam 1 are guide strips 13 which extend rearwardly beyond the stock 2 and. are curved along parallel lines, the ends of said guide strips terminating some distance above the landside 4. A curved stock 14 is insertible between the curved end portions of the guide strips 13 and has arcuate slots 15 therein through which extend clamping bolts 16, these bolts projecting transversely through the strips 13. Thus it will be seen that by loosening the bolts the stock 14 can be adjusted longitudinally between the guide strips 13 so as to raise or lower its lower end relative to the plane occupied by the landslde 4. It will be noted portions of the stock 14 and the guide strips 13 are all arranged in the arc of a circle so that this adjustment can be easily effected.

The lower end of the stock 14 is enlarged, as shown at 17 and the sub-soiling blade 18 1s bolted or otherwise secured to this enlargement.

A colter 19 is secured to the front end of the beam 1 close to the clevis 20.

It will be apparent that, while the stock 14 is in position, the plow, when drawn forward, will form a furrow and, as the blade 18 projects below the landside 4 it will be seen that said blade will cut into the subsoil, and loosen it. The depth of the loosened sub-soil can be regulated by adjusting the stock 14 between the guide strips 13. If it is not desired to use the sub-soiling attachment, the bolts 16 can be removed whereupon the stock 14 can be taken from between the guide strips. 7

Attention is called to the fact that, as the blade 18 is adjustable along a curved line by sliding the stock 14 between the guides 13, the said blade 18 will be maintained at the same distance from the heel of the plow at all points of adjustment of the blade. Furthermore as a result of this particular adjustment of the blade 18,- it will be seen that the deeper the blade is adjusted into the soil, the more acute will be its angle relative to the bottom of the furrow and, consequently, the blade will travel through the soil more readily than would otherwise be the case.

What is claimed is A plow including a beam having a clownwardly extending rear portion, a furrow opener connected to said portion, guide strip fixedly connected to each side of the beam,

that the interfitting and rearwardly, said ends being extended rearwardly beyond the downwardly curved portion of the beam, a curved stock slidably mounted between the guide strips and having arouate slots, means extending through the slots and guide strips for binding said guide strips upon the stock to hold the stock against movement, and a sub-soil blade ser-ured to the stock, said blade being adjustable angularly by sliding the stock be tween the guide strips and along the line of In testimony that we claim the foregoing as our own, we have hereto aflixed our signatures in the presence of two witnesses.

JOSEPH RICHARDSON HARRISON. GEORGE WILLIAM HOOPER.

Vitnesses V \V. S. THANNETT, Jos. P. TENNIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, I). 0. 

